CAJ | 학술논문

[目的]探讨简单、可靠的用于大豆苗期磷效率筛选的鉴定指标.[方法]采用高、低磷土壤盆栽试验,对大豆苗期的相对株高(RPH)、相对地上部干重(RAW)、相对根系干重(RRW)、相对地上部磷浓度(RAPC)和相对根部磷浓度(RRPC)5个指标进行了研究.[结果] 相对株高受低磷胁迫影响较小,变异系数仅为9.07%,与其他指标的相关性未达到显著水平;相对地上部干重、相对根部干重、相对地上部磷浓度和相对根部磷浓度受低磷胁迫的影响较大,其变异系数也较大,分别为26.67%、22.68%、24.01%和15.87%,指标间的相关系数呈显著或极显著正相关.[结论]相对地上部干重、相对根部干重和相对地上部磷浓度可作为综合评价大豆苗期磷效率筛选的重要指标,相对根部磷浓度可作为辅助筛选指标.
[목적]탐토간단、가고적용우대두묘기린효솔사선적감정지표.[방법]채용고、저린토양분재시험,대대두묘기적상대주고(RPH)、상대지상부간중(RAW)、상대근계간중(RRW)、상대지상부린농도(RAPC)화상대근부린농도(RRPC)5개지표진행료연구.[결과] 상대주고수저린협박영향교소,변이계수부위9.07%,여기타지표적상관성미체도현저수평;상대지상부간중、상대근부간중、상대지상부린농도화상대근부린농도수저린협박적영향교대,기변이계수야교대,분별위26.67%、22.68%、24.01%화15.87%,지표간적상관계수정현저혹겁현저정상관.[결론]상대지상부간중、상대근부간중화상대지상부린농도가작위종합평개대두묘기린효솔사선적중요지표,상대근부린농도가작위보조사선지표.
[Objective] Simple and reliable identification criteria used in screening phosphorus efficiency of soybean at seedling stage was discussed. [Method] Using the high and low phosphorus soil pot experiment, the soybean seedling stage's 5 criteria including RPH, RAW, RRW, RAPC and RRPC were studied. [Result] Low phosphorus stress had the low effects on relative plant height, the coefficient of variation was only 9.07%, which had not achieved the remarkable level with its its criteria's relevance; Low phosphorus stress had the higher effects on relatively above-ground dry weight and relative dry weight of root, relatively above-ground phosphorus concentration and relative root phosphorus concentration, its coefficient of variation was also big, which were 26.67%, 22.68%, 24.01% and 15.87% respectively, The correlation coefficient among the indicators had significantly or extremely significantly positive correlation. [Conclusion] Relatively above-ground dry weight and relative dry weight of root, relatively above-ground phosphorus concentration could be used as an important indicator of comprehensive evaluation of screening phosphorus efficiency of soybean at seedling stage, while the relative root phosphorus concentration could not be used as secondary screening index.